Interlocking arm



FIG. 1 is a perspective view of an embodiment of an interlocking arm according to our new design;

FIG. 2 is an exploded perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is an enlarged front elevation view thereof;

FIG. 5 is an enlarged back elevation view thereof;

FIG. 6 is an enlarged left side view thereof;

FIG. 7 is an enlarged right side view thereof;

FIG. 8 is an enlarged top plan view thereof; and,

FIG. 9 is an enlarged bottom plan view thereof.

The dash-dot broken lines adjacent the shaded areas of the figures represent the bounds of the claimed design while all other broken lines are directed to environment, form no part of the claimed design, and are for illustrative purposes only. 

CLAIM The ornamental design for an interlocking arm, as shown and described. 